Work is the transfer of energy from one object to another or the conversion of energy from one form to another. In the examples, the cricket ball does work on the wicket by transferring its kinetic energy to it. Similarly, the raised hammer does work on the nail by converting its potential energy to kinetic energy and then transferring that energy to the nail to drive it into the wood.
What is the relationship between work and energy in the context of the examples provided?
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The relationship between work and energy is that work is the transfer of energy. In the examples, a cricket ball transfers its kinetic energy to the wicket, doing work on it, and a falling hammer converts its potential energy to kinetic energy, doing work on the nail by driving it into the wood.